On-site Detection of Sulfur Mustard Based on Pinhole Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy
10.11895/j.issn.0253-3820.140415
- VernacularTitle:基于有孔壳层隔绝纳米粒子增强拉曼光谱的芥子气现场检测新方法
- Author:
Jing GAO
;
Jianfeng WU
;
Haiyue GAO
;
Lei GUO
;
Jianwei XIE
- Publication Type:Journal Article
- Keywords:
Pinhole shell-isolated nanoparticle-enhanced Raman spectroscopy;
Sulfur mustard;
On-site detection
- From:
Chinese Journal of Analytical Chemistry
2014;(10):1465-1470
- CountryChina
- Language:Chinese
-
Abstract:
An on-site method for the determination of sulfur mustard ( SM) was developed based on pinhole shell-isolated nanoparticle-enhanced Raman spectroscopy. By using 0. 1 mol/L MgSO4 as effective agglomeration reagent, more Raman “hot spots” were induced, and thus a limit of detection for SM at 10 μg/L was achieved with a linearity of 10-1000 μg/L and an analytical enhanced factor of 1. 1×106. This method can be directly applied in the measurement of SM in environmental water samples with good sensitivity and reproducibility, and the standard addition recovery was between 88%-114%. Good differentiation of four SM related compounds, 2-chloroethyl ethylsulfide, thiodiglycol, bis-β-chloroethyl sulphoxide and bis-β-chloroethyl sulphone, was also obtained.
